Yesterday Troian Bellisario (Spencer) shared a photo on Twitter behind-the-scenes of Pretty Little Liars, and it was of herself - wearing something of the fancy variety.
— Troian (@SleepintheGardn) November 9, 2012
For what occasion could Spencer be wearing another dress? Could it be during the season finale, or maybe it has something to do with this carnival spoiler. What do you think?
Source: Troian Bellisario via Twitter